1987年8月2日寻邬5.5级地震的孕育过程
|
摘要
1987年8月2日,江西省寻邬发生M_s5.5地震。本文研究了这次地震和震前的各种异常现象,研究发现,震前该区地壳形变和地震活动出现了中、长期同步变化,短临阶段,出现了异常地震活动和宏观现象。根据岩石破裂实验结果和地震前兆理论,对这次地震的孕育过程作了阶段性的划分。
On August 2, 1987, an earthquake with M = 5.5 occured in Xunwu, Jiangxi Province. The authors studied the earthquake and various anomalous phenomena before the event and found that both the crustal deformation and seismicity in Xunwu region exhibted the long- and middle-term synchronous varation; the short-term and imminent anomalous seismicity and macroscopic phenomena appeared then. Based on the results of rock fracture experiments and the theory of seismic precursors, the preparation process of the earthquake is divided into several stages.
On August 2, 1987, an earthquake with M = 5.5 occured in Xunwu, Jiangxi Province. The authors studied the earthquake and various anomalous phenomena before the event and found that both the crustal deformation and seismicity in Xunwu region exhibted the long- and middle-term synchronous varation; the short-term and imminent anomalous seismicity and macroscopic phenomena appeared then. Based on the results of rock fracture experiments and the theory of seismic precursors, the preparation process of the earthquake is divided into several stages.
引文
[1] 雷土成、王耀东,等.1987年8月2日寻邬地震的破裂方式.地震地质,1991,13(4) .
[2] 吕浩江,等.邵武-河源地震带中段地震活动趋势讨论.华南地震,1991,11(3) .
[3] 陆远忠,等.地震预报的地震学方法.北京:地震出版社,1985．
[4] 科学院地球所二室.大震前的地震活动.地震战线,1977,(6) .
[5] 兰州地震大队.用地震资料推断近期地震危险区.地震战线,1971,(8) .
[6] 刘正荣,等.早期前震与终止破裂点.地震战线,1977,(6) .
[7] 牛志仁.构造地震的前兆理论.地球物理学报,1978,21(3) .
[8] 胡长和,等.从前兆的时、空分布特征看唐山地震的孕育过程.唐山地震考察与研究.北京:地震出版社,1981．
[2] 吕浩江,等.邵武-河源地震带中段地震活动趋势讨论.华南地震,1991,11(3) .
[3] 陆远忠,等.地震预报的地震学方法.北京:地震出版社,1985．
[4] 科学院地球所二室.大震前的地震活动.地震战线,1977,(6) .
[5] 兰州地震大队.用地震资料推断近期地震危险区.地震战线,1971,(8) .
[6] 刘正荣,等.早期前震与终止破裂点.地震战线,1977,(6) .
[7] 牛志仁.构造地震的前兆理论.地球物理学报,1978,21(3) .
[8] 胡长和,等.从前兆的时、空分布特征看唐山地震的孕育过程.唐山地震考察与研究.北京:地震出版社,1981．
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心